A wastewater treatment system combining Myriophyllum aquaticum and activated sludge: Optimization of construction conditions and evaluation of wastewater treatment performance
文献类型： 外文期刊
作者： Guo, Xuan 1 ; Li, Yanmei 1 ; Zhong, Hua 1 ; Li, Peng 1 ; Zhao, Tongke 1 ; Zhang, Chengjun 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr & Resources, Beijing 100097, Peoples R China
关键词： Myriophyllum aquaticum; Response surface methodology; Plant mass; Microbial biomass; Biofilm
期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：6.789； 五年影响因子：6.914 ）
ISSN： 0301-4797
年卷期： 2019 年 235 卷
页码：
收录情况： SCI
摘要： Although Myriophyllum aquaticum exhibits efficient nitrogen and phosphorus removal from wastewater, it has poor performance on organic matter removal. Here, a wastewater treatment system combining M. aquaticum and activated sludge was developed to improve its removal of organic matter. The Box-Behnken response surface methodology was used to optimize the construction conditions of the system, and the effects of time, temperature, illumination intensity, pollutant load, and dissolved oxygen (DO) on plant mass increment (PMI) and microbial biomass (MB) of the system were investigated. The wastewater remediation potential of the system was then evaluated. The results show that temperature and illumination intensity significantly affected PMI (p < 0.01), and that time, pollutant load, and DO were the most significant factors affecting MB (p < 0.01). The optimal construction conditions were 18.77 days in length, a temperature of 20.42 degrees C, an illumination intensity of 5827.61 Lx, a pollutant load of 120.61 mg/g plant, and a DO of 3.21 mg/L. The inoculation of activated sludge caused MB of the system to increase by four times relative to the non-inoculated system, suggesting successful formation of biofilms on M. aquaticum. Additionally, the removal of chemical oxygen demand (COD) from wastewater was significantly enhanced by the combined approach compared with a system relying solely on M. aquaticum. This study provides a new method for improving the remediation efficiency of M. aquaticum by combining the use of this species and activated sludge.
- 相关文献
作者其他论文 更多>>
-
Characteristics and phytotoxicity of hydrochar-derived dissolved organic matter: Effects of feedstock type and hydrothermal temperature
作者：Lang, Qianqian;Guo, Xuan;Wang, Chao;Li, Lingyao;Li, Yufei;Xu, Junxiang;Zhao, Xiang;Li, Jijin;Liu, Bensheng;Sun, Qinping;Zou, Guoyuan
关键词：Hydrochar; Hydrothermal temperature; Dissolved organic matter; Excitation emission matrix; Parallel factor analysis; Phytotoxicity
-
Ex-situ phytoextraction using Pteris vittata as a sustainable way to protect soil resource
作者：Wan, Xiaoming;Zeng, Weibin;Lei, Mei;Chen, Tongbin;Li, Yanmei;Li, Yanmei;Wan, Xiaoming;Zeng, Weibin;Lei, Mei;Chen, Tongbin
关键词：Cost; Land resource; Pteris vittata; Phosphorus; Species; Strengthening measures
-
Drip irrigation under film mulch used on flat-bed increased vegetable yield by altering soil microbe community structure and soil nitrogen
作者：Xu, Xiangnan;Li, Yanmei;Du, Lianfeng;Zou, Guoyuan;Sun, Yanxin;Xu, Xiangnan;Li, Yanmei;Du, Lianfeng;Zou, Guoyuan;Sun, Yanxin;Li, Chao;Zhang, Haifang;Jia, Baodi
关键词：
-
Nitrification inhibitor chlorate and nitrogen substrates differentially affect comammox Nitrospira in a grassland soil
作者：Shah, Anish S.;Hsu, Pei-Chun;Chisholm, Chris;Podolyan, Andriy;Cameron, Keith;Di, Hong J.;Luo, Jiafa;Stenger, Roland;Carrick, Sam;Hu, Wei;Ferguson, Scott A.;Wei, Wenhua;Shen, Jupei;Zhang, Limei;Liu, Hongbin;Zhao, Tongke;Wei, Wenxue;Ding, Weixin;Pan, Hong;Liu, Yimeng;Li, Bowen;Du, Jianjun;Shah, Anish S.
关键词：comammox Nitrospira; ammonia oxidising archaea (AOA); ammonia oxidising bacteria (AOB); nitrification inhibitors; qPCR (quantitative PCR)
-
CaO-modified hydrochar reduces soil cadmium bioavailability by altering soil properties, shifting bacterial community, and promoting microbial metabolisms
作者：Lang, Qianqian;Li, Yanmei;Wang, Chao;Zou, Guoyuan;Sun, Qinping;Xia, Yu;Liu, Zhengang;Liu, Zhengang
关键词：Hydrochar; CaO modification; Heavy metal; Immobilization; Microbial community; Microbial metabolism
-
Simultaneous adsorption removal of organic and inorganic phosphorus from discharged circulating cooling water on biochar derived from agricultural waste
作者：Pan, Weiliang;Xie, Huimin;Zhou, Yi;Wu, Qiye;Xie, Huimin;Zhou, Yi;Zhou, Jiaqi;Guo, Xuan;Zhou, Jiaqi
关键词：Adsorption; Modified biochar; Discharged circulating cooling water; Phosphate; Organic phosphorus
-
Deficit irrigation and silicate spray applied since blooming period improved strawberry fruit quality without reducing fruit size
作者：Xu, Xiangnan;Zou, Guoyuan;Liao, Shangqiang;Sun, Na;Sun, Yanxin;Li, Yanmei;Lei, Xihong
关键词：Citrate; Fragaria x ananassa; Leaf area; Single fruit mass; Sucrose
